Was using my hairmax professional 12 a few days ago and noticed that the lasers were no longer aligned in a straight line. They were also not concentrated very well, meaning unless I held the hairmax comb very close to my skin the lasers didn't seem like concentrated points. I take very good care of the comb; have never dropped or banged it so I am wondering why this issue with the laser diodes is happening (mainly the not being in a straight line problem).